Salomé and Latasha began arguing about who did better on their tests, but they couldn't decide who didbetter given that they took different tests. Salomé took a test in Social Studies and earned a 80.8, andLatasha took a test in Math and earned a 68.1. Use the fact that all the students' test grades in the SocialStudies class had a mean of 73.7 and a standard deviation of 10, and all the students' test grades in Math had amean of 62.1 and a standard deviation of 8.8 to answer the following questions.a) Calculate the z-score for Salomé's test grade.z =b) Calculate the z-score for Latasha's test grade.z =c) Which person did relatively better?SaloméLatashaThey did equally well.

Salome's test grade: Mean = 73.7 , Standard deviation = 10 Social studies = 80.8 Latasha's test…

Answered: Salomé and Latasha began arguing about…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Lucille, Rocio, and Cristina are all taking College Mathematics but from different professors. They all recently took a statistics exam and the exam scores were normally distributed in each of their classes. Lucille's class had an average grade of 85 and the standard deviation was 3. Lucille earned 89.5 on the exam. Rocio's class had an average grade of 83 and the standard deviation was 4. Rocio earned 87.4 on the exam. Cristina's class had an average grade of 76 and the standard deviation was 6. Cristina earned 79.3 on the exam. Since some professors give harder exams than others, these students decided to use statistics to figure out who did the best on their exam.
Lucas and Alex began arguing about who did better on their tests, but they couldn't decide who did better given that they took different tests. Lucas took a test in Math and earned a 73.4, and Alex took a test in English and earned a 70.5. Use the fact that all the students' test grades in the Math class had a mean of 74.1 and a standard deviation of 11.3, and all the students' test grades in English had a mean of 60.9 and a standard deviation of 8.1 to answer the following questions.a) Calculate the z-score for Lucas's test grade.z=z=b) Calculate the z-score for Alex's test grade.z=z=
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